That means social security numbers, addresses, and even your credit card information can all be vulnerable through a simple, unassuming text message you receive.

"It may say something like, $500 was just withdrawn from your bank account, did you do it? If not, call this phone number," Pierson Clair, senior director of cyber security and investigations at Kroll, told NBC News. "There are millions of these text messages sent out every single day targeting everybody from small children to grandmothers and everybody in between."

"A phone is something you always have on you," Clair told NBC News. "And if you always have it on you, and you're moving quickly through life, you'll have taken your phone out and you'll say, 'Oh no!' And you'll actively respond to it. And then they've got you."

There isn't a way to block scammers from sending smishing messages, so experts recommend being skeptical if you're not sure about a text.